Dear Mark, I am not sure if am in the right place but our neighbours post code on Sat Nav gives drivers the wrong location and they wind up stuck in one of our fields. I've tractored 6 delivery vans out of the mud so far this year ! The post code in error is TN11 8PS. How do I move it to the following correct coordinates - 51deg.12'36.33''N / 0deg.11'08.05''E ? I would be grateful for your kind assistance. Kind regards, Charles.